New and high quality. Item Name: M3 Anti Vibration Mounts for Flight Controller V2 Upgraded. These dampers can effectively help reduce the sensitivity of flight controllers and are a must-have item for every pilot pursuing extreme flight performance. Designed for use with the latest F4 and F7 flight controllers on FPV quadcopter frames to reduce vibration. Made of high-quality rubber for lasting performance. Warning: This product is not suitable for children under 3 years old due to small parts. Length: 0.6 cm (0.24 in) Width: 0.6 cm (0.24 in) Height: 0.66 cm (0.26 in) Color: Black Material: Plastic Package Contents: 20 x Anti-Vibration Rubber Damper Balls Note: The package includes only the items listed above. Other products are not included. Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3 cm.